드론 영상을 활용한 금강 하도내 퇴적환경 변화 연구: 세종보 개방을 중심으로 = A Study on the Changes of Sedimentary Environment in Geum River Channel Using Drone Image: Focusing on Opening Gate of Sejong Weir

다국어 초록 (Multilingual Abstract)

In this study, the changes and characteristics of sedimentary environment in Geum River channel by opening gate of Sejong Weir were analyzed using aerial photos and drone images. Sedimentary landform was classified during the study period and it has been found that the changes of area in some classes such as mid-channel island of divided type, mid-channel island of undivided type, sand barrier, and sand island were larger than that of other classes. In addition, the characteristics of area changes of the sedimentary landform were analyzed in this study. As a result, it was determined that erosion and deposition of sediments in the river was depended on the increase of flow rate and velocity by the increase of precipitation particularly during the summer rainy reasons as well as typhoons, growth of vegetation, and efficiency of dam. The results can be used as data to identify the process of conserving endangered wildlife and restoring the naturalness of the river environment.